Armstrong International C3510-7 Air and Gas Vent

The Armstrong International C3510-7 is a high-performance Series 11AV Stainless Steel Free Floating Lever Air and Gas Vent engineered for the efficient removal of air and gases from pressurized liquid systems. Featuring a 3/4" NPT inlet and a 1/2" NPT outlet, this vent is optimized for applications requiring a 267 PSI maximum operating pressure. Built with a durable, all-stainless steel construction, the C3510-7 utilizes a #38 orifice to provide positive, leak-tight venting without the need for periodic gasket replacement. Its free-floating lever mechanism ensures a friction-free operation, making it a reliable industrial air eliminator for hydronic heating, cooling, and water distribution systems. The tamperproof, welded body design offers exceptional resistance to both internal and external corrosion, ensuring long-term service in demanding HVACR and liquid service environments.

Key Benefits

• Enhanced Reliability: The guided lever action ensures the valve seats properly under all operating conditions to prevent liquid loss.
• All-Stainless Steel Durability: Constructed from 304L stainless steel to withstand corrosive environments and high-pressure demands.
• Maintenance-Free Design: The permanently sealed, tamperproof unit eliminates the risk of leaks associated with traditional gaskets.
• Compact Power: Capable of high-leverage venting with a small footprint, ideal for high-point venting in tight spaces.

Common Questions

How do I select the correct orifice size for my system?
Orifice selection depends on your maximum differential pressure and the specific gravity of the liquid. The #38 orifice in this model is specifically rated for 267 PSI service.

Can this vent be used for hydrocarbon service?
Yes, the Series 11AV is suitable for air and gas venting in hydrocarbon systems, provided the operating pressure is within the rated limits for the specific gravity of the fluid.

Where should the Armstrong C3510-7 be installed?
For maximum efficiency, install this automatic air vent at all high points in your liquid system where air or gas is likely to accumulate.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.